Proppant vessel base



FIG. 1 is an upper perspective view of the proppant vessel base showingan embodiment of our design.;

FIG. 2 is a front elevation elevational view thereof of the embodimentof FIG. 1;

FIG. 3 is a rear elevation elevational view thereof of the embodiment ofFIG. 1;

FIG. 4 is a right side elevation elevational view thereof of theembodiment of FIG. 1;

FIG. 5 is an opposite a left side elevation elevational view thereof ofthe embodiment of FIG. 1;

FIG. 6 is a top plan view thereof of the embodiment of FIG. 1; and,

FIG. 7 is a bottom plan view thereof of the embodiment of FIG. 1.

The features presented in broken lines are for environmental purposesonly and form no part of the claimed designThe broken lines depictportions of the proppant vessel in which the design is embodies that arenot considered part of the claimed design.

CLAIM The ornamental design for a proppant vessel base, as shown anddescribed.